7.2 How Can I Make New Substances from Old Substances Vocabulary

A substance is made of only one type of material [atoms or molecules] all the way through.. Calcium, carbon, oxygen.A substance always has the same composition.

• Element

• 2

  Atom

• 3

  Pure Substance

• 4

  Mixture

Can be made of different amounts of each substance. Made of more than one substance [or more than one type of atom or molecule]Examples: Chocolate milk, trail mix.

• Pure Substance

• 2

  Element

• 3

  Molecule

• 4

  Mixture

A substance that is dissolved in a solution. Example: salt, sugar

• Mixture

• 2

  Solvent

• 3

  Reactant

• 4

  Solute

A liquid substance capable of dissolving other substances. Example: water

• 1

  Reactant

• 2

  Mixture

• 3

  Solute

• 4

  Solvent

The ability to dissolve in another substance. If we mix a solid in a liquid and can no longer see the solid, then the solid is soluble in the liquid. Example: salt is soluble in water. Vegetable shortening is not soluble in water.

• 1

  Solute

• 2

  Solubility

• 3

  Solvent

• 4

  Melting Point

To form a solution by mixing evenly

• dissolve

• 2

  solvent

• 3

  mixture

• 4

  solute

The temperature at which a solid becomes a liquid.When two samples of substances have different melting points, this is evidence that they are not the same substance.

• melting point

• 2

  chemical products

• 3

  Solubility

• 4

  Pure Substance

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A substance is made of only one type of material [atoms or molecules] all the way through.. Calcium, carbon, oxygen.A substance always has the same composition.

• 1

  Atom

• 2

  Element

• 3

  Pure Substance

• 4

  Mixture

Characteristics that determine the nature of a material.are unique characteristics that help identify a substance and distinguish one substance from another.Examples: color, odor, density, solubility in water, melting point,

• 1

  Elements

• 2

  properties

• 3

  Reactants

• 4

  Solubility

Tags

NGSS.MS-PS1-2

Smallest particle of an element

• Element

• 2

  Atom

• 3

  Mixture

• 4

  Molecule